| 分光光度法测定水中微量元素Cu（Ⅱ） |
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| 引用本文： | 阎超.分光光度法测定水中微量元素Cu（Ⅱ）[J].贵阳金筑大学学报,2009(3):53-54. |
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| 作者姓名： | 阎超 |
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| 作者单位： | 新疆医科大学药学院; |
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| 摘 要： | 在pH为6-7范围内，用分光光度法测定不同水样中微量元素铜（Ⅱ）的含量。Cu（Ⅱ）与二苯碳酰二肼生成红色配合物，最大吸收波长为545nm，表观摩尔吸光系数为ε=1.297×10^4L·mol^-1·cm^-1，Cu（Ⅱ）含量在测定范围内服从朗伯比耳定律，测定结果的相对标准偏差RSD=2.86％（n=7），回收率试验结果在98-102％之间。用于水样中微量铜的测定，结果满意。
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| 关 键 词： | 微量元素铜（Ⅱ） 分光光度法 水样 |
Spectrophotometer Analysis of Trace Element Cu（Ⅱ） |
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| YAN Chao.Spectrophotometer Analysis of Trace Element Cu（Ⅱ）[J].Journal of Jinzhu University of Guiyang,2009(3):53-54. |
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| Authors: | YAN Chao |
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| Institution: | YAN Chao (College of Pharmacy,Xinjiang Medical University,Urumqi Xinjiang 830011,China) |
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| Abstract: | Spectrophotometer is used to test the different water samples Copper（Ⅱ） content in the pH range 6-7. Cu（Ⅱ） and diphenylcarbazide hydrazine form a red complex with its molar. Absorption maximal of the complex are found at the wavelength of 545 nm and its apparent molar absorptive is ε=1.297×10^4L·mol^-1·cm^-1. The Copper（Ⅱ）content in the context fits the Lambert＇s law, and RSD=2.86%（n=7） values calculated from the analytical results and values of recovery found were in the range of 94% to 101%. Satisfactory result is obtained for determination of microa-mounts copper in water. |
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| Keywords: | copper（Ⅱ） spectrophotometer different sources of water |
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